f34b6f4f2b
Bug: 35928935 Change-Id: Ia8496505e61cfcfdb8f9f62366d2f36e453db111 Test: make aapt2_tests
118 lines
4.4 KiB
C++
118 lines
4.4 KiB
C++
/*
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* Copyright (C) 2015 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef AAPT_LINKER_REFERENCELINKER_H
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#define AAPT_LINKER_REFERENCELINKER_H
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#include "android-base/macros.h"
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#include "Resource.h"
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#include "ResourceValues.h"
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#include "ValueVisitor.h"
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#include "link/Linkers.h"
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#include "process/IResourceTableConsumer.h"
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#include "process/SymbolTable.h"
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#include "xml/XmlDom.h"
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namespace aapt {
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/**
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* Resolves all references to resources in the ResourceTable and assigns them
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* IDs.
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* The ResourceTable must already have IDs assigned to each resource.
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* Once the ResourceTable is processed by this linker, it is ready to be
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* flattened.
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*/
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class ReferenceLinker : public IResourceTableConsumer {
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public:
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ReferenceLinker() = default;
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/**
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* Returns true if the symbol is visible by the reference and from the
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* callsite.
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*/
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static bool IsSymbolVisible(const SymbolTable::Symbol& symbol,
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const Reference& ref, const CallSite& callsite);
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/**
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* Performs name mangling and looks up the resource in the symbol table.
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* Returns nullptr if the symbol was not found.
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*/
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static const SymbolTable::Symbol* ResolveSymbol(const Reference& reference, SymbolTable* symbols);
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/**
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* Performs name mangling and looks up the resource in the symbol table. If
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* the symbol is not visible by the reference at the callsite, nullptr is
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* returned. out_error holds the error message.
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*/
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static const SymbolTable::Symbol* ResolveSymbolCheckVisibility(const Reference& reference,
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const CallSite& callsite,
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SymbolTable* symbols,
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std::string* out_error);
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/**
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* Same as resolveSymbolCheckVisibility(), but also makes sure the symbol is
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* an attribute.
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* That is, the return value will have a non-null value for
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* ISymbolTable::Symbol::attribute.
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*/
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static const SymbolTable::Symbol* ResolveAttributeCheckVisibility(const Reference& reference,
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const CallSite& callsite,
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SymbolTable* symbols,
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std::string* out_error);
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/**
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* Resolves the attribute reference and returns an xml::AaptAttribute if
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* successful.
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* If resolution fails, outError holds the error message.
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*/
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static Maybe<xml::AaptAttribute> CompileXmlAttribute(const Reference& reference,
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const CallSite& callsite,
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SymbolTable* symbols,
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std::string* out_error);
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/**
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* Writes the resource name to the DiagMessage, using the
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* "orig_name (aka <transformed_name>)" syntax.
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*/
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static void WriteResourceName(DiagMessage* out_msg, const Reference& orig,
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const Reference& transformed);
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/**
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* Transforms the package name of the reference to the fully qualified package
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* name using
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* the xml::IPackageDeclStack, then mangles and looks up the symbol. If the
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* symbol is visible
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* to the reference at the callsite, the reference is updated with an ID.
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* Returns false on failure, and an error message is logged to the
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* IDiagnostics in the context.
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*/
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static bool LinkReference(const CallSite& callsite, Reference* reference, IAaptContext* context,
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SymbolTable* symbols, xml::IPackageDeclStack* decls);
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/**
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* Links all references in the ResourceTable.
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*/
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bool Consume(IAaptContext* context, ResourceTable* table) override;
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private:
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DISALLOW_COPY_AND_ASSIGN(ReferenceLinker);
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};
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} // namespace aapt
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#endif /* AAPT_LINKER_REFERENCELINKER_H */
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